81249355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{739}}^1\times {\mathrm{1999}}^1$

素因数の和:2754

約数の個数: 16

約数和(自身を含む): 106560000

約数和(自身を除く): 25310645

約数列:

[1, 5, 11, 55, 739, 1999, 3695, 8129, 9995, 21989, 40645, 109945, 1477261, 7386305, 16249871, 81249355]

約数ペア:

[(1, 81249355), (5, 16249871), (11, 7386305), (55, 1477261), (739, 109945), (1999, 40645), (3695, 21989), (8129, 9995)]